Standards ......................................27 Setup ........................................28 Before installing your ONT device .............................. 28 How to Setup your ONT .................................. 28 Interface connection ..................................30 4.3.1 ONT 769503-SFU ....................................30 4.3.2 ONT 769503-4GE-2FXS ................................... 33 4.3.3 ONT 769503-MBH ..................................... 35 Configuration ..................................... 37 ONT activation ....................................
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GPON ONT STANDAR 5.2.1 Software download from the OLT ............................... 37 Operation indicators ..................................39 ONT 769503-SFU ....................................39 6.1.1 Status ........................................39 6.1.2 Final checks ......................................40 6.1.3 Troubleshooting ....................................41 ONT 769503-4GE-2FXS ................................... 42 6.2.1 Status ........................................42 6.2.2...
GPON ONT STANDAR 1.Summary The ONT is an Optical Terminal Equipment unit for Passive Optical Networks (PON) termination in a (Fiber-To-The-Home) FTTH / (Fiber-To-The-Cell) FTTC service delivery architecture. ONT communicates with the OLT (Optical Line Terminal) for the PON side and with the customer’s premises for the client side.
2.Technical Description 2.1 ONT Main Functionalities The ONT is aimed for customer premises and complies with the ITU-T G.984.x recommendation in order to transport (over GPON) and deliver (to premises domain) the full pack of broadband services. Broadband service applications are commonly referred as below: High speed internet (HSI);...
GPON ONT STANDAR 2.1.2 Interoperability The ONT bridging family equipment complies with ITU-T G.984.x. recommendation as like as G.984.4 (OMCI) ensuring multi-vendor OLT interop- erabily with major GPON OLT vendors. The ONT bridging family equipment is certified by BBF.247 ONU certification program. BBF.247 ONU certification program certifies ONT link layer configuration and management protocol, OMCI, Figure 2-2, as defined by ITU-T G.984.3, ITU-T G.984.4 and ITU-T G.988.
2.1.3 Services The ONT supports the following services: Voice over IP (VoIP) service; Broadband Internet Access: High bit rate data for High Speed Internet service – HSI; IPTV service; Analog video service (RF Overlay); Mobile Backhaul service. 2.1.3.1 Internet over GPON GPON is a point-to-multipoint passive optical network, in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 1-64.
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GPON ONT STANDAR The communication between client equipment (ONT) and the ISP access routers (MAN edge) is made by an optical fiber-based passive architec- ture (ITU-T G.984 Recommendation). The GPON network acts as a Layer 2 Ethernet metropolitan network. Access network assures and controls the media (MAC) communication through a TDMA scheme, introducing GEM (GPON Encapsulation Method) in between to adapt TDM layer to Ethernet.
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2.1.3.2 IPTV service For the IPTV service the ONT also behaves like a Layer 2 bridging device. For this service, the ONT has a specific GEM PORT for Multicast. This same GEM PORT is requested by the user in order have access to the various IPTV channels. Every time a user request a new channel, the ONT will send to OLT a IGMP packet requesting that Channel.
ONT SW through download from the OLT via OMCI. The ONT equipment has a DHCP client (ONT 769503-4GE-2FXS) to get an IP address, alternatively the ONT could be configured with a static IP (ONT 769503-4GE-2FXS). The configuration of the static IP or DHCP client is related to the WAN side and is enabled by the OLT.
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2.1.4.2 Upstream QoS In the upstream direction, for each T-CONT the ingress traffic in the ONT passes by a mapping block that maps the traffic in one of the eight queues according with the p-bit, these queues have a Strict Priority Scheduler. The ONT “waits” until the OLT assigns a transmission timeslot for that T- CONT, so that the most prioritized queues are the ones that transmit first.
GPON ONT STANDAR Alloc-ID Allocation Type 0-127 Default Alloc-ID (Dynamic or Static) 128-255 Reserved 256-639 Dynamic or Static 640-1023 Static Table 2-2: Alloc-ID’s distribution by T-CONT type Figure 2-10: Traffic distribution by service/client 2.1.4.4 Upstream QoS scenarios Upstream QoS scenarios 8 priority queues Strict-priority Upstream Scheduling...
3. General Specifications 3.1 PON Optical Interfaces Items Unit ONT Tx ONT Tx Nominal bit rate 1244.16 1244.16 Mbps Operating wavelength 1260-1360 1260-1360 Line code Scrambled NRZ Scrambled NRZ Minimum ORL of ODN >32 >32 Mean launched power MIN +0.5 +0.5 Mean launched power MAX Less than Min...
GPON ONT STANDAR ONU Single Fiber - G.984.2 (03/2003) + G.984.2 Amd 1 (02/2006) and 2 (03/2008), G.983.3 (03/2001). 3.2 Optical Metering The equipment measures the downstream received power from the OLT in 1490nm and reports this value through OMCI. The accuracy of the measurement is +/- 3dBm, maximum.
Traffic counters, statistics, errors, GbE interface status are only available by port; Configuration parameters of services provisioned in the ONT: T-CONT, GEMPORT, VLAN and GPON MAC tables; Alarms/events included in the standards mentioned above. 3.6 RF TV Channel slicing characteristics ONT 769503- ONT 769503- ONT 769503- ONT 769503-...
GPON ONT STANDAR 3.7 General Features Features ONT 769503-SFU ONT 769503-4GE- ONT 769503-MBH 2FXS GPON Singlemode Optical Fiber Cable (SC/APC Connector) Ethernet 10/100/1000Base-T Direct or crossover AUTO-MDIX UTP CAT5E cable (RJ45) FXS Ports N.A. N.A. Voice / Fax RJ11 connector Video RF connector N.A.
Never assume that the laser beam is inactive or that the optical fibre is switched off. 4.2 How to Setup your ONT The ONT may be installed horizontally on a flat surface, wall mounted and ETSI rack (ONT 769503-MBH), quick steps for both of these setups are described below.
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Place the electrical CAT5E ethernet cable in the rack electrical cabling accomodation structure in order to promote a correct cabling management up to the equipment ethernet interface connector. Place the power cabling (reduntant paths) from the power box up to the TRIDENT power cord connectors. Figure 4-14: ONT Rack Mount (ONT 769503-MBH)
Figure 4-16: ONT 769503-SFU interfaces connection 2 (WAN interface) Connect the coaxial RF cable (C2) from the F-type connector (B2) on the ONT 769503-SFU to the RF input of a TV or the RF input of the local CATV network;...
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Connect the DC connector from the supplied (C3) converter (230V AC/12V DC) to the DC input on the ONT 769503-SFU (B3) and con- nect the adapter to a 230V AC electrical socket. Figure 4-18: ONT 769503-SFU interfaces connection 5 (Power Interface) 4.3.1.1 General Overview of ONT 769503-SFU Connections...
Figure 4-20: ONT 769503-4GE-2FXS interfaces connection 1 (PON Interface) Connect the Ethernet UTP CAT5E (C1) cable (direct or crossover) from the ONT 769503-4GE-2FXS’s Ethernet port (B2) to the Home Gateway’s WAN port (B7) and/or an Ethernet port from the PC/Set Top Box;...
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Connect the coaxial RF cable (C3) from the F-type connector (B1) on the ONT 769503-4GE-2FXS to the RF input of a TV or the RF input of the local CATV network; Figure 4-22: ONT 769503-4GE-2FXS interfaces connection 3 (RF Overlay Interface) Connect the telephone cable (C2) to one of the RJ11 FXS ports on the ONT 769503-4GE-2FXS (B3) to a telephone/fax;...
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GPON ONT STANDAR 4.3.2.1 General Overview of ONT 769503-4GE-2FXS Connections The following figure shows the connections to be made between the ONT 769503-4GE-2FXS and the home gateway. Figure 4-25: ONT 769503-4GE-2FXS Connections Nº Description RESET button Video RF Connector, F type...
4.3.3 ONT 769503-MBH ONT 769503-MBH 4.3.3.1 General Overview of ONT 769503-MBH Connections Figure 4-27: ONT 769503-MBH front pannel Nº Description RJ45 Port - 10/100/1000Base-T Ethernet with AUTO-MDIX SC/APC ONT’s Internal Connector -48VDC TRIDENT Power Connector (a) -48VDC TRIDENT Power Connector (b)
GPON ONT STANDAR 5. Configuration 5.1 ONT activation The ONT activation process has a distributed set of procedures that allow the connection of a inactive equipment to a PON network. This configu- ration is done following the procedure described in the OMCI protocol. 5.2 Customization For customization process, the requirements specified in the G.984.4, G.984.5 and ‘Implementer’s Guide’...
6. Operation indicators 6.1 ONT 769503-SFU 6.1.1 Status The ONT 769503-SFU has seven LEDs to indicate its operational status.Example Heading 3 Figure 6-29: ONT 769503-SFU status LEDs Figure 6-30: ONT 769503-SFU Ethernet port LEDs...
Loss of optical signal detected 7 - Emergency-Stop Anomalous event Table 6-2: ONT 769503-SFU states 6.1.2 Final checks Check, using the following table, if the ONT 769503-SFU has been successfully registered on the network LED Status Device ON > OFF ONT 769503-SFU...
Solution Verify that the DC power jack is correctly con- ONT 769503-SFU not POWER (A2) nected to the ONT 769503-SFU and the power powered adapter at the wall power socket. Verify that the ETHERNET cable is correctly con- nected to the ONT 769503-SFU’s ETHERNET Port...
GPON ONT STANDAR 6.2 ONT 769503-4GE-2FXS The ONT 769503-4GE-2FXS has several LEDs to indicating the equipment operational status. 6.2.1Status Figure 6-31: ONT 769503-4GE-2FXS LEDs LED Status Description Power supply ON POWER Power supply OFF With Ethernet connection A2 to A5...
The following combination of GPON LINK (A10) and AUTH (A11) LEDS reflects the various states that the ONT 769503-4GE-2FXS is in during the process of configuration and communication with the OLT (Optical Line Terminal). LED Status ONT 769503-4GE- Description 2FXS Status...
769503-4GE-2FXS Error in ONT 769503- 4GE- GPON LINK (A10) Blinking FXS authentication. Table 6-8: ONT 769503-4GE-2FXS Troubleshooting 6.3 ONT 769503-MBH The ONT 769503-MBH has several LEDs to indicate the equipment operational status. 6.3.1 Status Figure 6-32: ONT 769503-MBH status LEDs...
Device A2, A3, A4 and A6 ONT 769503-MBH Flashing Table 6-10: ONT 769503-MBH LED final checks 6.3.3 Troubleshooting The table below, according to the LEDs status, identifies a possible cause and describes the procedure to fix the problem. State Probable Cause...
7. Glossary of Terms and Abbreviations 3G Third generation mobile telecommunications AAA Authentication, Authorization and Accounting AC Alternating Current AC Access Concentrator ACL Access Control List ARP Address Resolution Protocol AS Autonomous System AUTO-MDIX Medium Dependent Interface Crossover Automatic Choice BGP Border Gateway Protocol CAT5E Category 5 Cable CATV Cable TV...
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GPON ONT STANDAR MEGACO Media Gateway Control Protocol MRU Maximum Receive Unit MTBF Mean Time Between Failures NAS Network Access Server NAT Network Address Translation Next Generation Network Network Management System OLT Optical Line Terminal OMCI ONT Management Control Interface ONT Optical Network Terminal OPEX Operational Expenditure OSI Open Systems Interconnection...
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